Segmented polyurethanes containing movable rotaxane units on the main chain: Synthesis, structure, and mechanical properties
Segmented polyurethanes containing movable rotaxane units on the main chain: Synthesis, structure, and mechanical properties
复制标题
主链上含有可移动轮烷单元的嵌段聚氨酯:合成、结构和机械性能
DOI:
10.1016/j.polymer.2020.122358
复制
发表时间:
2020
期刊:
影响因子:
4.6
通讯作者:
Takata Toshikazu
中科院分区:
文献类型:
--
作者:
Sawada Jun;Sogawa Hiromitsu;Marubayashi Hironori;Nojima Shuichi;Otsuka Hideyuki;Nakajima Ken;Akae Yosuke;Takata Toshikazu
In this study, segmented polyurethanes (SPUs), including those with rotaxane structures, were synthesized in high yields (>83%) using a [2]rotaxane diol that has a hydroxy group in each wheel and axle component. The traditional prepolymer method was applied to introduce rotaxane structures at different locations in the soft segment and at the boundary between soft and hard segments. The mechanical properties of the formed SPUs were evaluated via tensile tests, and we determined that the introduction of an appropriate amount of rotaxane structure improved their extensibility, toughness, and stress-relaxing properties. Differential scanning calorimetry (DSC), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FT-IR), and synchrotron X-ray measurements revealed that the phase-separated structures of the SPUs were almost independent of the amount of rotaxane. The highly movable rotaxane scaffold was even effective for toughening the SPU, which is a physically cross-linked network, without changing their phase-separated structures.
登录
查看更多内容
影响因子:
16.6
作者:
Bin Imran A;Esaki K;Gotoh H;Seki T;Ito K;Sakai Y;Takeoka Y
通讯作者:
Takeoka Y
DOI:
10.1016/0032-3861(93)90477-r
发表时间:
1993
期刊:
影响因子:
--
作者:
Kerstin Mitrach;D. Pospiech;L. Häussler;D. Voigt;D. Jehnichen;M. Rätzsch
通讯作者:
M. Rätzsch
影响因子:
5.5
作者:
Marubayashi, Hironori;Asai, Shigeo;Sumita, Masao
通讯作者:
Sumita, Masao
DOI:
10.1080/10601329508011061
发表时间:
1995
期刊:
影响因子:
--
作者:
D. Loveday;G. Wilkes;M. Bheda;Y. Shen;H. Gibson
通讯作者:
H. Gibson
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
青木大輔;打田聖;高田十志和;青木大輔・打田聖・高田十志和;青木大輔;Daisuke Aoki・Zhen Chen・Satoshi Uchida・Tosikazu Takata;Daisuke Aoki・Satoshi Uchida・Tosikazu Takata
通讯作者:
Daisuke Aoki・Satoshi Uchida・Tosikazu Takata